Finding the Fourth Proportional to 72,298.44, 99,772.34 and 42,101.36

Step by Step Solution

1. Step 1: Write the proportion equation
   72,298.44 : 99,772.34 = 42,101.36 : x
2. Step 2: Convert to fraction form
   72,298.44/99,772.34 = 42,101.36/x
3. Step 3: Cross multiply
   72,298.44x = 99,772.34 × 42,101.36
4. Step 4: Simplify right side
   72,298.44x = 4,200,551,204.38
5. Step 5: Solve for x
   x = 4,200,551,204.38/72,298.44
6. Step 6: Final answer
   x = 58,100.16